EP 0242174 A1 19871021 - Method and tool for providing a chamfered hole.
Title (en)
Method and tool for providing a chamfered hole.
Title (de)
Verfahren und Werkzeug zum Erzeugen eines abgeschrägten Loches.
Title (fr)
Procédé et outil pour usiner un trou chanfreiné.
Publication
Application
Priority
JP 8674586 A 19860415
Abstract (en)
A method for boring a chamfered hole and a tool for boring a hole such that boring may be effected through a hole on a glass plate and to simultaneously effect chamfering on respective apertures on the both sides of the plate, to enable speedy and accurate boring without bringing forth defective product with chipping-off, joggles on the glass plate.
IPC 1-7
IPC 8 full level
C03B 33/00 (2006.01); B24B 9/10 (2006.01); B24B 27/06 (2006.01); B24D 7/00 (2006.01); B24D 7/18 (2006.01); B28D 1/04 (2006.01); C03B 33/02 (2006.01)
CPC (source: EP KR US)
B24B 9/10 (2013.01 - EP KR US); B24B 27/0641 (2013.01 - EP US); B24D 7/18 (2013.01 - EP US); B28D 1/041 (2013.01 - EP US); Y10T 407/1948 (2015.01 - EP US); Y10T 408/03 (2015.01 - EP US); Y10T 408/353 (2015.01 - EP US)
Citation (search report)
- [X] EP 0075061 A1 19830330 - TRYCKLUFTTEKNIK HARALD NEUMANN [SE]
- [A] FR 1011877 A 19520701
- [A] US 2978846 A 19610411 - BARRON LEE H
- [A] DE 1934915 A1 19700122 - DIAMANT BOART SA
- [A] GB 2153726 A 19850829 - BOSCH GMBH ROBERT
- [A] US 4116578 A 19780926 - GELFAND MIKHAIL LVOVICH, et al
- [A] US 2369120 A 19450213 - FERRIES THOMAS W
Designated contracting state (EPC)
AT BE CH DE ES FR GB GR IT LI LU NL SE
DOCDB simple family (publication)
EP 0242174 A1 19871021; EP 0242174 B1 19900404; AT E51557 T1 19900415; DE 3762098 D1 19900510; JP H0579613 B2 19931104; JP S62241841 A 19871022; KR 870009818 A 19871130; US 4800686 A 19890131
DOCDB simple family (application)
EP 87303239 A 19870414; AT 87303239 T 19870414; DE 3762098 T 19870414; JP 8674586 A 19860415; KR 870003549 A 19870414; US 3625787 A 19870409